Federici S, Sormani MP, Ozen S, Lachmann HJ, Amaryan G , et al.
Annals of the rheumatic diseases •
The objective of this work was to develop and validate a set of clinical criteria for the classification of patients affected by periodic fevers. Patients with inherited periodic fevers (familial Mediterranean fever (FMF); mevalonate kinase deficiency (MKD); tumour necrosis factor receptor-associated periodic fever syndrome (TRAPS); cryopyrin-associated periodic syndromes (CAPS)) enrolled in the Eurofever Registry up until March 2013 were evaluated. Patients with periodic fever, aphthosis, pharyngitis and adenitis (PFAPA) syndrome were used as negative controls. For each genetic disease, patients were considered to be 'gold standard' on the basis of the presence of a confirmatory genetic analysis. Clinical criteria were formulated on the basis of univariate and multivariate analysis in an initial group of patients (training set) and validated in an independent set of patients (validation set). A total of 1215 consecutive patients with periodic fevers were identified, and 518 gold standard patients (291 FMF, 74 MKD, 86 TRAPS, 67 CAPS) and 199 patients with PFAPA as disease controls were evaluated. The univariate and multivariate analyses identified a number of clinical variables that correlated independently with each disease, and four provisional classification scores were created. Cut-off values of the classification scores were chosen using receiver operating characteristic curve analysis as those giving the highest sensitivity and specificity. The classification scores were then tested in an independent set of patients (validation set) with an area under the curve of 0.98 for FMF, 0.95 for TRAPS, 0.96 for MKD, and 0.99 for CAPS. In conclusion, evidence-based provisional clinical criteria with high sensitivity and specificity for the clinical classification of patients with inherited periodic fevers have been developed.
Garavello W, Pignataro L, Gaini L, Torretta S, Somigliana E , et al.
The Journal of pediatrics •
To seek evidence supporting a role for tonsillectomy or adenotonsillectomy in the management of affected children with periodic fever with aphthous stomatitis, pharnygitis, and adenitis (PFAPA) syndrome. A comprehensive literature search was conducted to identify all published English-language observational and randomized studies evaluating the efficacy of tonsillectomy or adenotonsillectomy on PFAPA syndrome. A combination of keywords was used to identify relevant articles. A total of 15 studies including 149 treated children were found, including 13 observational noncomparative studies and 2 randomized controlled trials. The pooled rate of complete resolution emerging from the combined analysis of all treated children was 83% (95% CI, 77%-89%). A meta-analysis of the two randomized controlled trials showed homogeneity of the results (P=.37, Breslow-Day test) and a common odds ratio for complete resolution of 13 (95% CI, 4-43; P<.001). Surgery appears to be a possible option for management of PFAPA syndrome. Available evidence is limited, however, and the precise role of surgery remains to be clarified. We suggest considering this option when symptoms markedly interfere with the child's quality of life and medical treatment has failed.
Pignataro L, Torretta S, Pietrogrande MC, Dellepiane RM, Pavesi P , et al.
Archives of otolaryngology--head & neck surgery •
To assess the practicability of integrated medical and surgical management and the effectiveness of tonsillectomy in children with PFAPA syndrome (periodic fever, aphthous stomatitis, pharyngitis, and cervical lymphadenopathy). A prospective study. Secondary pediatric and otolaryngological university center. Of 30 patients evaluated for periodic fever, 18 children with PFAPA syndrome were included in the study. Patients underwent long-term pediatric and otolaryngological assessments, and their parents were asked to keep monthly diaries with reports of any subsequent episodes, symptom, and related sign. Patients received traditional medical therapies, and 9 patients underwent tonsillectomy for the lack of lasting recovery. The association between postoperative outcomes and age at tonsillectomy and the differences in the patients' condition before and after tonsillectomy were statistically tested. In addition, the removed tonsillar tissue was analyzed molecularly to evaluate concomitant infections. All of the surgical patients reported a symptomatic improvement, with complete clinical recovery in 5 cases (56%) and significant reduction in number (P = .005) and duration (P = .03) of recurrences in the remaining 4 (44%). Results of molecular analysis of tonsillar specimens were negative for bacteria in all but 1 patient. Otolaryngologists should be trained to recognize PFAPA syndrome, for which management consists of a regular and prolonged second-level pediatric and otolaryngological follow-up, with surgery only after the failure of traditional medical therapy.
